The FN®FNS/FNX magazine base plate is made from 6061 T6 Aluminum, CNC machined and hard coat anodized. A perfect replacement for the factory FN®FNS/FNX plastic magazine base plate. The magazine base plate will only fit 9mm and 40 caliber models for FNS9, FNS40, FNX9 and FNX40 pistols. All design and work are performed at the Molon Labe® facility in Arizona. Made in the U.S.A.Price: $19.95